Multi-channel oropharyngeal ventilation device

Abstract

The invention relates to the technical field of oropharyngeal ventilation devices, and discloses a multi-channel oropharyngeal ventilation device which comprises a ventilation pipe with a straight front end and a bent rear end, and further comprises at least one pipe groove formed in the wall body of the ventilation pipe in the bending direction of the ventilation pipe; the auxiliary pipe is movably inserted into the pipe groove; the movable sleeve is arranged on the auxiliary pipe in a sleeving mode and can drive the auxiliary pipe to move in the pipe groove, and then the tail end of the auxiliary pipe is longer than the tail end of the ventilation pipe. According to the multi-channel oropharyngeal ventilation device, the auxiliary tube can move in the tube groove in the bending direction of the ventilation tube, so that the length of the auxiliary tube can be adjusted, the ventilation tube can be conveniently inserted, and the accuracy and effectiveness of sputum suction or drug administration can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oropharyngeal ventilation devices, and more particularly to a multi-channel oropharyngeal ventilation device. Background Art

[0002] In clinical anesthesia, first aid, and intensive care scenarios, oropharyngeal ventilation devices are needed to maintain the patency of the patient's upper airway and ensure that gas can smoothly enter the trachea and lungs. Common oropharyngeal ventilation devices are generally a curved tracheal tube. After being inserted into the patient's mouth, it can support the root of the tongue and prevent it from falling backward to cause airway obstruction, thereby achieving the purpose of assisting respiratory ventilation.

[0003] In order to perform operations such as sputum suction and drug administration while maintaining ventilation, some tracheal tubes are additionally integrated with auxiliary tubes to achieve multi-channel functions. However, for the existing technology, the lengths of most auxiliary tubes are generally fixed and cannot be dynamically adjusted according to the patient's anatomical characteristics, sputum accumulation location, or drug administration requirements during use.

[0004] If the length of the auxiliary tube is short or flush with the tracheal tube, although it is convenient for the insertion of the tracheal tube, it will cause the auxiliary tube to not accurately act on the hypopharynx or the fluid accumulation area, affecting the sputum suction or drug administration effect; if the length of the auxiliary tube is longer than the tracheal tube, although the auxiliary tube can reach the hypopharynx or the fluid accumulation area, the insertion of the tracheal tube is more painful, and the extra section at the end will affect the convenience of operation. Summary of the Invention

[0005] (I) Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a multi-channel oropharyngeal ventilation device, which has the advantage of being able to flexibly adjust the length of the auxiliary tube.

[0006] (II) Technical Solutions To achieve the above object of being able to flexibly adjust the length of the auxiliary tube, the present invention provides the following technical solutions: A multi-channel oropharyngeal ventilation device, including a tracheal tube with a straight front end and a curved rear end, further including: At least one tube groove is opened in the wall of the tracheal tube along the bending direction of the tracheal tube; An auxiliary tube is movably inserted into the tube groove; A movable sleeve is sleeved on the auxiliary tube and can drive the auxiliary tube to move in the tube groove, so that the end of the auxiliary tube is longer than the end of the tracheal tube.

[0007] As a preferred technical solution of the present invention, both ends of the movable sleeve are provided with end rings, and the end rings are movably arranged in the tube groove; A front sealing ring for allowing the auxiliary tube to pass through is fixedly installed in the tube groove. The front sealing ring is located in front of the front end ring and is connected to the front end ring through a spring.

[0008] As a preferred technical solution of the present invention, an annular cavity is formed between the front sealing ring and the front end ring, and air can be filled into the annular cavity to push the front end ring to move in the pipe groove.

[0009] As a preferred technical solution of the present invention, a positioning sleeve is fixedly installed on the outer wall of the front end of the ventilation pipe, an annular tooth groove is formed by the depression of the outer wall of the positioning sleeve, and an annular airbag is laid and fixed in the annular tooth groove; The annular airbag is communicated with the annular cavity through a connecting pipe.

[0010] As a preferred technical solution of the present invention, a limiting ring is also movably arranged between the two end rings, and the limiting ring is used to limit the maximum displacement distance of the front end ring.

[0011] As a preferred technical solution of the present invention, a moving groove is formed in the wall body of the ventilation pipe, a moving block is slidably installed in the moving groove, and the moving block is connected with the limiting ring through a connecting column.

[0012] As a preferred technical solution of the present invention, a lead screw is rotatably installed in the moving groove, and the moving block is screwed on the lead screw.

[0013] As a preferred technical solution of the present invention, a wrapping bladder is provided on the inner wall of the movable sleeve, and the wrapping bladder can be inflated and bulged to tightly wrap the auxiliary pipe passing through the movable sleeve.

[0014] As a preferred technical solution of the present invention, an air cavity is formed in the wall body of the ventilation pipe, a piston is movably arranged in the air cavity, and the piston is communicated with the wrapping bladder through an inflation pipe.

[0015] As a preferred technical solution of the present invention, the moving block and the piston are fixedly connected by a connecting rod.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides a multi-channel oropharyngeal ventilation device, which has the following beneficial effects: 1. For the multi-channel oropharyngeal ventilation device, the auxiliary pipe can move in the pipe groove along the bending direction of the ventilation pipe, so as to realize the adjustable length of the auxiliary pipe, which is not only convenient for the insertion of the ventilation pipe, but also can improve the accuracy and effectiveness of sputum suction or drug administration.

[0017] 2. For the multi-channel oropharyngeal ventilation device, the patient's teeth bite in the annular tooth groove and squeeze the annular airbag, which can not only effectively position the ventilation pipe, but also realize the automatic extension of the auxiliary pipe through the extrusion of the annular airbag, and the operation process is safe and reliable.

[0018] 2. The multi-channel oropharyngeal ventilation device can limit the maximum insertion depth of the auxiliary tube by adjusting the position of the limit ring, thereby preventing potential safety hazards such as irritating the throat or accidentally entering the trachea caused by excessive insertion of the auxiliary tube, and improving the accuracy and safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 is a three-dimensional schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 is a cross-sectional view of the overall structure of the present invention; Figure 4 is a cross-sectional view of the end part of the ventilation tube of the present invention; Figure 5 is an enlarged schematic diagram of the positioning sleeve part of the present invention; Figure 6 is the present invention Figure 4 an enlarged schematic diagram of part A in Figure 7 is an enlarged schematic diagram of the moving block part of the present invention.

[0020] In the figure: 1, ventilation tube; 2, positioning sleeve; 3, annular alveolar ridge; 4, annular airbag; 5, tube groove; 6, auxiliary tube; 7, movable sleeve; 8, front sealing ring; 9, spring; 10, communicating tube; 11, end ring; 12, limit ring; 13, moving groove; 14, lead screw; 15, moving block; 16, connecting column; 17, control button; 18, wrapping sac; 19, inflation tube; 20, air cavity; 21, piston; 22, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1: Please refer to Figures 1-5 , a multi-channel oropharyngeal ventilation device, including a ventilation tube 1 with a straight front end and a curved rear end. The general shape of the ventilation tube 1 is the same as that in the prior art, and it can be inserted into the patient's oral cavity by direct placement or reverse insertion method.

[0023] As Figure 3As shown in the figure, along the bending direction of the ventilation tube 1, a tube groove 5 is formed in the wall of the ventilation tube 1. The auxiliary tube 6 is movably inserted into the tube groove 5 and can move along the tube groove 5, so as to adjust the protruding length of the auxiliary tube 6 relative to the ventilation tube 1. This is not only convenient for the insertion of the ventilation tube 1, but also can improve the accuracy and effectiveness of sputum suction or drug administration: when inserting, the auxiliary tube 6 is retracted; after insertion, the auxiliary tube 6 is extended to reach near the lower part of the pharynx and the epiglottis, so as to more effectively suck away sputum or accurately administer drugs.

[0024] In this embodiment, it is preferably set to have two auxiliary tubes 6, one for sputum suction and one for drug administration. The material of the auxiliary tube 6 can be selected as a bendable medical silica gel tube; the ventilation tube 1 is a rigid tube.

[0025] In the present invention, as Figure 4 shown, a movable sleeve 7 is sleeved on the auxiliary tube 6. The movable sleeve 7 can drive the auxiliary tube 6 to move in the tube groove 5, so that the end of the auxiliary tube 6 retracts or is longer than the end of the ventilation tube 1. When the position of the auxiliary tube 6 needs to be adjusted, directly control the movement of the movable sleeve 7.

[0026] As Figure 4 shown, end rings 11 are provided at both ends of the movable sleeve 7. The end rings 11 are movably arranged in the tube groove 5. A front sealing ring 8 for the auxiliary tube 6 to pass through is fixedly installed in the tube groove 5. The front sealing ring 8 is located in front of the front end ring 11 and is connected to the front end ring 11 through a spring 9. Further, an annular cavity is formed between the front sealing ring 8 and the front end ring 11. Air can be filled into the annular cavity to push the front end ring 11 to move in the tube groove 5, and then the auxiliary tube 6 extends.

[0027] In this embodiment, a positioning sleeve 2 is fixedly installed on the outer wall of the front end of the ventilation tube 1. An annular tooth groove 3 is formed by the depression of the outer wall of the positioning sleeve 2. An annular airbag 4 is fixedly laid in the annular tooth groove 3. The annular airbag 4 is connected to the annular cavity through a connecting pipe 10; After the ventilation tube 1 is inserted into the patient's oral cavity, the patient's teeth bite in the annular tooth groove 3 and squeeze the annular airbag 4. This can not only effectively position the ventilation tube 1, but also enable the air in the annular airbag 4 to be filled into the annular cavity through the connecting pipe 10, and then push the movable sleeve 7 to move (at this time the spring 9 is stretched). The movement of the movable sleeve 7 can drive the auxiliary tube 6 to move, realizing the automatic extension of the auxiliary tube 6. The operation process is safe and reliable.

[0028] On the contrary, when the patient opens his mouth to remove the ventilation tube 1, under the restoring force of the spring 9, the movable sleeve 7 will also reset, and then the auxiliary tube 6 will automatically retract, which is convenient for removal.

[0029] Embodiment 2: Please refer to Figures 3-7, on the basis of the first embodiment, in this embodiment, a limiting ring 12 is also movably arranged between the two end rings 11. The limiting ring 12 is used to limit the maximum displacement distance of the front end ring 11, thereby limiting the maximum insertion depth of the auxiliary tube 6, preventing safety hazards such as the auxiliary tube 6 extending excessively and causing irritation to the throat or misentering the trachea, improving the accuracy and safety during use. At the same time, the controllable insertion depth is also applicable to the physiological characteristics or nursing needs of different patients.

[0030] Specifically, as Figure 6 shown, a moving groove 13 is formed in the wall body of the ventilation tube 1. A moving block 15 is slidably installed in the moving groove 13. The moving block 15 is connected to the limiting ring 12 through a connecting column 16. The moving block 15 is specifically screwed on a lead screw 14. One end of the lead screw 14 is rotatably installed on the inner wall of the moving groove 13, and the other end extends to the outside of the ventilation tube 1 and is fixedly connected to a control knob 17; When it is necessary to adjust the position of the limiting ring 12, just turn the control knob 17 to rotate the lead screw 14. The rotation of the lead screw 14 drives the moving block 15 screwed on its outer wall to move, and the movement of the moving block 15 can drive the limiting ring 12 to move through the connecting column 16.

[0031] Embodiment Three: Please refer to Figures 3-7 , on the basis of the first and second embodiments, in this embodiment, the auxiliary tube 6 and the movable sleeve 7 are separable, which facilitates the replacement of the auxiliary tube 6. After each use, a new auxiliary tube 6 can be replaced, and the main body of the ventilation tube 1 is fully disinfected.

[0032] Specifically, as Figure 6 shown, a wrapping bag 18 is provided on the inner wall of the movable sleeve 7. The wrapping bag 18 can be inflated to tightly wrap the auxiliary tube 6 inserted in the movable sleeve 7, connecting the movable sleeve 7 and the auxiliary tube 6 together. Conversely, the auxiliary tube 6 can be easily removed.

[0033] In this embodiment, an air cavity 20 is formed in the wall body of the ventilation tube 1. A piston 21 is movably arranged in the air cavity 20. The piston 21 is communicated with the wrapping bag 18 through an inflation tube 19. In addition, the moving block 15 and the piston 21 are fixedly connected through a connecting rod 22. Taking Figure 6 the perspective as an example, when the moving block 15 is located at the leftmost side, the piston 21 is also located at the leftmost side; When the moving block 15 is located at the leftmost side, due to the blockage of the limiting ring 12, the movable sleeve 7 can hardly move to the right. At this time, since the piston 21 is also located at the leftmost side, the wrapping bag 18 is deflated, which is convenient for the insertion of the auxiliary tube 6 into the movable sleeve 7; When the moving block 15 moves rightward to adjust the blocking position, the piston 21 is also driven to move through the connecting rod 22. The movement of the piston 21 inflates the bladder 18 through the inflating pipe 19, so that the bladder 18 tightly wraps the auxiliary pipe 6 and connects the movable sleeve 7 and the auxiliary pipe 6 into one body. As the moving block 15 continues to move rightward, the bladder 18 will wrap more and more tightly. Thus, in this embodiment, when the moving block 15 is located at the leftmost side, it is in the "installation position" at this time, which is convenient for the installation or disassembly of the auxiliary pipe 6 in the movable sleeve 7. When the moving block 15 moves rightward, it is in the "locking position", and the movable sleeve 7 and the auxiliary pipe 6 can be connected into one body.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel oropharyngeal ventilation device, comprising a ventilation tube (1) having a straight front end and a curved rear end, characterized in that: Also includes: At least one pipe groove (5) is opened in the wall of the ventilation pipe (1) along the bending direction of the ventilation pipe (1); A secondary pipe (6) is movably inserted into the pipe groove (5); The movable sleeve (7) is sleeved on the auxiliary pipe (6) and can drive the auxiliary pipe (6) to move in the pipe groove (5), thereby making the end of the auxiliary pipe (6) longer than the end of the ventilation pipe (1).

2. The multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: Both ends of the movable sleeve (7) are provided with end rings (11), and the end rings (11) are movably arranged in the pipe groove (5); A front sealing ring (8) for allowing the auxiliary pipe (6) to pass through is also fixedly installed in the pipe groove (5); the front sealing ring (8) is located in front of the front end ring (11) and is connected to the front end ring (11) via a spring (9).

3. The multi-channel oropharyngeal ventilation device according to claim 2, characterized in that: An annular cavity is formed between the front sealing ring (8) and the front end ring (11), and air can be filled into the annular cavity to push the front end ring (11) to move in the pipe groove (5).

4. The multi-channel oropharyngeal ventilation device according to claim 3, characterized in that: A positioning sleeve (2) is fixedly mounted on the outer wall of the front end of the ventilation pipe (1); the outer wall of the positioning sleeve (2) is recessed to form an annular groove (3); an annular air bag (4) is laid and fixed in the annular groove (3); The annular airbag (4) is connected to the annular cavity via a connecting tube (10).

5. The multi-channel oropharyngeal ventilation device according to any one of claims 2 to 4, characterized in that: A limiting ring (12) is also movably arranged between the two end rings (11), and the limiting ring (12) is used to limit the maximum displacement distance of the front end ring (11).

6. The multi-channel oropharyngeal ventilation device according to claim 5, characterized in that: A movable groove (13) is formed in the wall of the ventilation pipe (1), a movable block (15) is slidably mounted in the movable groove (13), and the movable block (15) is connected to the limit ring (12) via a connecting column (16).

7. The multi-channel oropharyngeal ventilation device according to claim 6, characterized in that: A screw rod (14) is rotatably mounted in the movable groove (13), and the movable block (15) is screwed onto the screw rod (14).

8. The multi-channel oropharyngeal ventilation device according to claim 6, characterized in that: The inner wall of the movable sleeve (7) is provided with a wrapping bag (18), and the wrapping bag (18) can be inflated to wrap tightly the auxiliary tube (6) inserted into the movable sleeve (7).

9. The multi-channel oropharyngeal ventilation device according to claim 8, characterized in that: An air cavity (20) is formed in the wall of the ventilation tube (1), a piston (21) is movably arranged in the air cavity (20), and the piston (21) is connected to the bag (18) via the inflation tube (19).

10. The multi-channel oropharyngeal ventilation device according to claim 9, characterized in that: The moving block (15) and the piston (21) are fixedly connected via a connecting rod (22).

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